Pressure-regulator



(No Model.) 2 SheetsSheet 1..

0. ROGERS.

PRESSURE REGULATOR.

No. 398,849. Patented Mar. 5, 1889., r

2 Sheets-Sheet 2.

(No Model.)

0. ROGERS. PRESSURE REGULATOR.

No. 398,849. Patented Mar. 5, 1889., P

NHED STATES ArnNT OFFICE.

CHARLES ROGERS, OF ALLEGHENY, ASSIGNOR OF ONE-HALF TO ISAAC VANCE AND T. l. VANDERGRIFT, OF PTT'ISBI'RG, PENNSYLVANIA.

PRESSU RE=REG U LATOR.

SPECIFICATION forming part of Letters Patent No. 398,849, dated March 5, 1889.

Application filed July 9, 1888i Serial No. 279,447. No model.)

To aZZ whom. it 71mg concern,- from the chamber (1 to the low-pressurecham- Be itknown that I, CHARLES ROGERS, a citiber Z) upon the slightest movement of the zen of the 'United States,residing at Allegheny, valve f, therefore preventing any quick or ah- 5 in the county of Allegheny and State of Pennrupt movement of the parts connected there- 5 sylvania, have invented certain new and usewith. Above this valvefis a small sphericalful Improvements in Pressure Regulators; shaped chamber, 1', in direct communication and I do hereby declare the following to be a with the highpressure chamber c by means full, clear, and exact description of the invenof a small channel, j, formed in the casting 60 tion, such as will enable others skilled in the 0, and entering the said chamber 2" near the art to which it pertains to make and use the top. Operating at the base of this sphericalsame, reference being had to the accompanyshaped chamber i is a balancing plunger or ing drawings, which form a part of this speciplug, 7., connected to the valve f below by a iieation. stem, 1, and rendered gas-tight by means of a 6 5 My invention relates to an improvement in flexible rubber or leather disk, 72, securely pressure-regulators, the object being to pro attached to the top of the balancing plunger vide an apparatus whereby gas or other subor pin 7.; This plunger it acts as a balance stance may be reduced from a high to a low to the valve 7", separating the high and low or moderate pressure, and atthe same time pressure chambers c I). 70 prevent what is known to the art as knock- Between the top of the low-pressure chaming, or, in other words, to provide a device her i) and the casting 0, having the spherical that when in operation will be noiseless. chamber 1? formed therein, is a flexible dialVith these ends in view my invention conphragm, n1, properly secured to the connectsists of the combination, construction, and ing valve-stem I, which prevents any leakage 75 arrangement of parts, as will be hereinafter from the chamber 7) at that point and coun 2 5 fully described, and articularl v pointed out ieracts the atmospheric pressure on thebaseol' in the claims. the balancing plunger or plug 7.7. The top of In the accompanying drawings, Figure 'l is the spherical chamber 1" is provided with a a side sectional elevation of my improved screw-cap, p, which is used for properly plac- So pressure-regulator constructed in accordance ing the valves and their connected portions in 0 with my invent-ion. Fig. 2 is a plan view of position.

the same, having the cap or cover removed At a suitable point in the top wall of the therefrom the better to show the inner worklow-pressure chamber 1) a relief-valve, q, is ing parts. Fig. 3 a transverse sectional placed, which is provided with a weight, 1', elevation of the apparatus, taken through the and adapted to allow the gas to escape from 5 high and low pressure chambers. Fig. 4 is a that chamber I) should any of the several side elevation of the valve. Fig. 5 is an inparts of the regulator become deranged, and verted plan view of the same. thereby relieve the same from excessive press- To put my inventionv into practice, 1 proj are To one side of these two chambers 11 9o vide a metallic box, a,of suitable size and form is arranged a large diaphragm, 3, having at- 0 of construction, having formed in one end P tached thereto a connecting-piece,t, which is thereof two chambers, b c, separated the one i attached to a horizontal. lever, u, one end of from the other-by a partition-wall, d, which by which is attached to a boss, 1*, formed on the its peculiar shape forms a bench, and used valvestem Z. This lever u is provided with 5 as a valve-seat, e, for a valve, f, which dia moving weight, n, capable of being moved 4 5 vides or separates thehigh-pressure chamber c toward and away from the fulcrum or hearfrom the low or moderate pressure chamber Z). ing post 3 and secured in any position by This valve f is provided with anumber of a small set-screw, at, set in overhanging lugs downwardly-extending arms or guides, 9,0011- of the weight w. A small channel, 2, connects I00 a V, as will be seen by reference to Figs. at beneath the large diaphragm s. Surrounding and 5 on the drawings. These V-shaped the above-described apparatus is a cap or grooves I admit the gas gradually and slowly cover, B, which confines any escaping gas,

nected at the top to the valve fin the form of the low-pressure chamber 2; with the space A Which is carried to a point of safety through a pipe, D, entering the space formed by the cover.

In operation the gas is introduced into the high-pressure chamber 0 through a pipe, F, entering the same, and by the working of the valve f passes out of the low-pressure chamber Z) through the pipe G at a low or moderate pressure. The valve f and the plunger or plug 70, connected thereto, are accurately balanced, so that the pressure of gas in the chamber 0 moves the same vertically off their seats, and in so doing the gas is admitted into the low-pressure chamber bthrough the V-shaped openings i of the valve f. The gas thus entering the said chamber 1) escapes into the space A below the large diaphragm 8 through the channtl .2. This large diaphragm s, when the pressure beneath the same equals the desired pressure in the chamber 1), moves upward, thereby operating the lever to to close the lower valve, f, until such times as a portion of the gas has been carried and used through the service-pipe.

It will be seen that the construction of the valve f, separating the high and low pressure chambers Z) c, is such that a quick or abrupt movement of the same is rendered impossible. The gas graduallyand slowly escaping from the V-shaped grooves 2' into the gives the large diaphragm s ample time to operate to close the valve f, thereby avoiding what is commonly known in this class of apparatus for regulating fluid-pressure as knocking.

Having thus described my invention, what I claim, and desire to secure by Letters Patent,

1. In a pressul e-regulator, the high and low pressure chambers Z) c, separated by a wall or bench, (Z, having a valve-seat, a valve, f, fitted on said valve seat, a separate chamber, 1', communicating with the high-pressure chamber, another separate chamber, A, communicating with the low-pressure chamber, a balancing plunger or plug, 7;, operating in the chamber 1 and connected with the valve f, and a diaphragm in the chamber A, and having intermediate connections with the valve-stem, substantially as and for the purpose described.

9. In a pressure-regulator, the high-pressure chambers 13 1', communicating with one another through an intermediate contracted passage, 0, the low-pressure chambers b A, also communicating with one another through a separate passage, .2, a valve, f, for establishing communication between the high and low pressure chambers 12 c, a balancing plug or plunger, 1;, in the high-pressure chamber 1', connected with the valve, and a flexible diaphragm in the low-pressure chamber A, and connected by an adj ustably-weighted lever with said valve, substantially as and for the purpose described.

- between said chambers, another 3. I11 a pressure-regulator, the combination of the high and low pressure chambers b 0, another elevated chamber, 2', communicating with the low-pressure chamber, a valve, f, for establishing communication between the high and low pressure chambers, abalancing plunger or plug operating in the chamber 2' and connected to the valvestem, and a diaphragm located in the upper part of the low-pressure chamber and connected with the valve-stem, substantially as and for the purpose described.

t. In an apparatus for the purpose set forth, the combination consisting of the valve f, havin g V-shaped openings 2' formed below the seat of the same, the balance plunger or plug 70, connected thereto and operating at the base of a spherical chamber, 'Z', the flexible disk 11, secured to the top of the plunger or plug 7c, the passage j, connecting the high-pressure chamber c with the said spherical chamber i, and the diaphragm m, properly attached to the valve-stem Z, whereby a gas-tight connection is made and an atmospheric balance is formed, as and for the purpose described.

5. In a pressure-regulator, the combination of the high and low pressure chambers 19 c, a valve, f, for establishing communication elevated 1 chamber, i, communicating with the highlow-pressure chamber 1) fills the same and pressure chamber, a plunger or plug operating in the chamber '6 and connected to the valve-stem .to move with the valve, and a flexible disk, n, secured to the plunger or plug and extending at its edges beyond the plunger or plug to bear against the wall of said chamber 2', substantially as described.

6. An apparatus for the purpose described, consisting of the valve f, provided with V- shaped openings 1' below the seat 71, the balance plunger or plug 7o, connected thereto, the spherical chamber 2" and disk 41, secured to the top of the balance-valve 70, the passage j, leading from the high-pressure chamber c to that above the balance plunger or plug it, the small diaphragm m, attached to the valve-stem Z, the high and low pressure chambers b c, the relief-valve q, the large diaphragm .9, having a passage, 2, communieating with the low-pressure chamber 17 and the space beneath the same, and the Weighted lever 11, connected to the diaphragm s and to the valve-stem Z, having an intermediate post or bearing, fl], between the same, substantially as described.

In testimony that I claim the foregoing I hereunto afiix my signature this 6th day of June, A. D. 1888.

CHARLES ROGERS. [L. In presence of- O. 0. LEE, -M. E. HARRISON. 

